Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/106873
DC Field | Value | Language |
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dc.contributor | Photonics Research Centre | - |
dc.contributor | Department of Electrical and Electronic Engineering | - |
dc.creator | Zhu, K | - |
dc.creator | Zhou, B | - |
dc.creator | Wu, H | - |
dc.creator | Shang, C | - |
dc.creator | Lu, L | - |
dc.creator | Adeel, M | - |
dc.creator | Yan, Y | - |
dc.creator | Zhao, Z | - |
dc.creator | Tam, HY | - |
dc.creator | Lu, C | - |
dc.date.accessioned | 2024-06-07T00:58:31Z | - |
dc.date.available | 2024-06-07T00:58:31Z | - |
dc.identifier.issn | 0143-8166 | - |
dc.identifier.uri | http://hdl.handle.net/10397/106873 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Ltd | en_US |
dc.rights | © 2021 Elsevier Ltd. All rights reserved. | en_US |
dc.rights | © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. | en_US |
dc.rights | The following publication Zhu, K., Zhou, B., Wu, H., Shang, C., Lu, L., Adeel, M., ... & Lu, C. (2021). Multipath distributed acoustic sensing system based on phase-sensitive optical time-domain reflectometry with frequency division multiplexing technique. Optics and Lasers in Engineering, 142, 106593 is available at https://doi.org/10.1016/j.optlaseng.2021.106593. | en_US |
dc.subject | Coherent detection | en_US |
dc.subject | Distributed acoustic sensing | en_US |
dc.subject | Distributed optical fibre sensor | en_US |
dc.subject | Frequency division multiplexing | en_US |
dc.subject | Phase-sensitive OTDR | en_US |
dc.title | Multipath distributed acoustic sensing system based on phase-sensitive optical time-domain reflectometry with frequency division multiplexing technique | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 142 | - |
dc.identifier.doi | 10.1016/j.optlaseng.2021.106593 | - |
dcterms.abstract | We propose a multipath distributed acoustic sensing (MP-DAS) system based on phase-sensitive optical time-domain reflectometry (Φ-OTDR) and frequency division multiplexing (FDM) technique. With FDM introduced to Φ-OTDR, simultaneously monitoring of multipath vibration is realized with flexible functionality. In the proposed MP-DAS system, the parameters of each path can be adjusted individually according to the path's specific monitoring requirement. A dual path Φ-OTDR system with 1 km and 22 km measurement distance is demonstrated in the experiment. Through heterodyne detection and FDM technique, both amplitude and phase information are obtained for event locating and vibration sensing in each of the two paths, with a spatial resolution of 5 m and 10 m respectively. With changing optical power and pulse width of one path, its influence on the other path is discussed and analyzed. This proposed MP-DSA system based on FDM technique provides an efficient and cost-effective way for upgrading a conventional single DAS into an integrated DAS network, which shows great potential in many applications such as modern city civil structure monitoring with different demands. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Optics and lasers in engineering, July 2021, v. 142, 106593 | - |
dcterms.isPartOf | Optics and lasers in engineering | - |
dcterms.issued | 2021-07 | - |
dc.identifier.scopus | 2-s2.0-85101751831 | - |
dc.identifier.eissn | 1873-0302 | - |
dc.identifier.artn | 106593 | - |
dc.description.validate | 202405 bcch | - |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | EIE-0035 | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | National Key R&D Program of China; National Natural Science Foundation of China (NSFC) | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 48731841 | en_US |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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Zhu_Multipath_Distributed_Acoustic.pdf | Pre-Published version | 1.65 MB | Adobe PDF | View/Open |
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